••• 4300 LEAD OR LEAD-FREE WATER WASHABLE SOLDER PASTE (250GR JAR)

4300 Lead or Lead-Free Water Washable Solder Paste (250gr jar)

The 4300 series offers true multi-process capabilities, ideal for water washable applications, able to be cleaned using standard aqueous cleaning systems without saponification. Utilizes synthetic materials that deliver ideal printing characteristics, unparalleled lot-to-lot consistency and extremely long stencil life. LF-4300 is also VOC and halide-free, and classified as RELO.

Introducing LF-4300 (lead-free) and 4300 (tin-lead), two revolutionary synthetic solder pastes that offer such unparalleled versatility and forgiveness, we still don’t believe it.

Both the LF-4300 and the 4300 offer true multi-process capabilities, ideal for water washable applications, able to be cleaned using standard aqueous cleaning systems without saponification. Both formulas also utilize synthetic materials that deliver ideal printing characteristics, unparalleled lot-to-lot consistency and extremely long stencil life. LF-4300 and 4300 are also VOC and halide-free, and classified as RELO.

The print definition of LF-4300 is ideal for fine pitch applications. The stencil life of this water-soluble product virtually eliminates waste of solder paste from the printed circuit board. This type 3 solder paste will meet pitch requirements from 16 mil to 24 mil.

Printer Operation

The following are general guidelines for stencil printer optimization with LF-4300. Some adjustments may be necessary based on your process requirements:

Print Speed: 25–100mm/sec

Squeegee Pressure: 0.2–0.7kg/inch of blade

Under Stencil Wipe: Once every 10–25 prints or as necessary

Stencil Cleaning

Automated stencil cleaning systems for both stencil and misprinted circuit boards. Manual cleaning using water at 60°C or 99% isopropyl alcohol (IPA. Post-reflow cleaning using water at 40-60°C with 30-50 PSI pressure.

Storage and Handling

Refrigerated storage at 42–47°F will prolong the solder paste shelf life to no less than 6 months

Syringes & cartridges should be stored vertically with the dispensing tip down.

Solder paste should be allowed to reach ambient temperature naturally, prior to use (about 6-8 hours).

Never freeze solder paste.

Heating
Read the data sheet to find specifications about the recommended temperature profile.